CN112421601A - Circuit for interface switching equipment and interface switching equipment - Google Patents
Circuit for interface switching equipment and interface switching equipment Download PDFInfo
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- CN112421601A CN112421601A CN202011125712.8A CN202011125712A CN112421601A CN 112421601 A CN112421601 A CN 112421601A CN 202011125712 A CN202011125712 A CN 202011125712A CN 112421601 A CN112421601 A CN 112421601A
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- 238000003780 insertion Methods 0.000 description 3
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- 108700025151 PD protocol Proteins 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/08—Three-wire systems; Systems having more than three wires
- H02J1/084—Three-wire systems; Systems having more than three wires for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
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Abstract
The invention discloses a circuit for interface switching equipment and the interface switching equipment, the circuit includes: the switching circuit comprises an input end, a switching circuit and an output end which are electrically connected in sequence, wherein the input end is electrically connected with an external power supply and is used for receiving the power supply input of the external power supply; the output end is electrically connected with the access joint and used for outputting a power supply to the joint; and the switching circuit is used for identifying the joint and determining the output power corresponding to the joint so as to control the external power supply to output the corresponding input power to the input end. The invention can provide the switching interface for different equipment with the DC connector, thereby conveniently supplying power for the equipment by using the switching interface, bringing convenience to users and improving the user experience.
Description
Technical Field
The invention relates to the technical field of information interaction, in particular to a circuit for interface switching equipment and the interface switching equipment.
Background
The USB interface also has three interfaces with different appearances, namely Type-A, Type-B, Type-C; Type-C is a completely new form of USB interface that has emerged with the latest USB 3.1 standard. The USB-IF organization is released in 2014 8 months, is a brand new interface established by a USB standardization organization for solving the defects that the USB interface is not unified in physical interface specification and only can transmit electric energy in one way for a long time, and integrates the functions of power supply, display, data transmission and the like.
The Type-C interface has the greatest advantage of supporting insertion in 2 directions, formally solving the worldwide problem of inaccurate USB insertion, and allowing the insertion in both the front and the back to be carried out randomly.
With the increasing popularization of the Type-C interface, more and more manufacturers such as mobile phones, tablet computers, notebooks and the like transfer the power supply interface to the Type-C interface; likewise, it is a future trend that power adapters and chargers are turned to Type-C interfaces. However, on one hand, a lot of old interfaces of notebooks, shavers, projectors and the like still exist in the market, and the old interfaces are used, so that various benefits brought by the USB interface, especially the Type-C interface, cannot be experienced; on the other hand, some patch cords on the market can only adopt four voltage specifications of 5V/9V/15V/20V which can be provided by the existing power adapter to supply power.
Therefore, how to provide a uniform switching interface for different devices with DC connectors so as to more conveniently supply power to the devices by using a USB interface and how to realize that the same power adapter supplies different voltages for different devices are technical problems to be solved at present.
Disclosure of Invention
The present invention has been made in view of the above problems. The invention provides a circuit for interface switching equipment and the interface switching equipment, which can provide switching interfaces for different equipment with DC connectors, so that a USB interface is used for conveniently supplying power for the equipment, convenience is brought to users, and the user experience is improved; in addition, the required voltage can be provided for the equipment according to the actual voltage requirements of different equipment, the limitation that the prior art can only adopt a fixed voltage specification for power supply is broken, and the use of a user is greatly facilitated.
According to an aspect of the present invention, there is provided a circuit for an interface switching device, the circuit comprising: an input terminal, a switching circuit and an output terminal electrically connected in sequence, wherein
The input end is electrically connected with an external power supply and is used for receiving the power supply input of the external power supply;
the output end is electrically connected with the access joint and used for outputting a power supply to the joint; and
the switching circuit is used for identifying the connector and determining the output power corresponding to the connector, so that the external power supply is controlled to output corresponding input power to the input end.
Further, the input terminal is electrically connected to the USB interface, and the output terminal is electrically connected to the DC interface.
Further, the patching circuit comprises:
an identification circuit for identifying the type of the joint;
and the control circuit determines the output power corresponding to the joint based on the identified type of the joint and controls the input power of the external power supply based on the output power corresponding to the joint.
Further, the switching circuit further comprises:
and the switching circuit is conducted when the input power of the external power supply is detected to be equal to the output power corresponding to the joint.
Further, identifying the type of the joint comprises: and identifying the resistance value of the joint, so that the control circuit determines the output power corresponding to the joint based on the resistance value.
Further, identifying the type of the joint comprises: the identification circuit is communicated with the chip of the joint for identification, and the output power corresponding to the joint is determined.
Further, when the input end is connected to the external power supply, the communication protocol of the external power supply is determined and handshake with the external power supply is performed, so that the output power corresponding to the connector is sent to the external power supply.
Further, the input terminal is in PD communication with the external power supply through a CC pin.
According to an aspect of the present invention, there is provided an interface switching apparatus including: the interface switching device comprises a first interface, a second interface and the circuit for interfacing the switching device, wherein the first interface is electrically connected to an input end, and the second interface is electrically connected to an output end.
Further, the interface adapter device further comprises a power line.
The invention provides a circuit for interface switching equipment and the interface switching equipment, which can provide switching interfaces for different equipment with DC connectors, so that power can be conveniently supplied to the equipment by using a USB (universal serial bus), convenience is brought to users, and user experience is improved; in addition, the required voltage can be provided for the equipment according to the actual voltage requirements of different equipment, the limitation that the prior art can only adopt a fixed voltage specification for power supply is broken, and the use of a user is greatly facilitated.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail embodiments of the present invention with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings, like reference numbers generally represent like parts or steps.
FIG. 1 shows an overall schematic of a circuit for an interface transition device according to an embodiment of the invention;
fig. 2 is a schematic diagram illustrating a schematic structural diagram of a circuit for interfacing the switching device according to an embodiment of the present invention.
Reference numerals:
100: input terminal
200: switching circuit
300: control circuit
400: identification circuit
500: output end
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a subset of embodiments of the invention and not all embodiments of the invention, with the understanding that the invention is not limited to the example embodiments described herein.
In order that the invention may be understood in detail, more specific details are set forth in the following description in order to provide a thorough understanding of the invention. It is apparent that the practice of the invention is not limited to the specific details set forth herein as are known to those of skill in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to the detailed description and should not be construed as limited to the embodiments set forth herein.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, as the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. When the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "upper", "lower", "front", "rear", "left", "right" and the like as used herein are for purposes of illustration only and are not limiting.
A circuit for an interface switching device and a detailed scheme of the interface switching device of the present invention are described below with reference to fig. 1 to 2.
FIG. 1 illustrates an overall schematic diagram of a circuit for an interface transition device according to an embodiment of the invention;
as shown in fig. 1, the circuit for interface switching device according to the embodiment of the present invention includes: the input end, the switching circuit and the output end are electrically connected in sequence; wherein
The input end is electrically connected with an external power supply and is used for receiving the power supply input of the external power supply;
the output end is electrically connected with the access joint and used for outputting power to the joint; and
the switching circuit is used for identifying the connector and determining the output power corresponding to the connector, so that the external power supply is controlled to output corresponding input power to the input end. The switching circuit can quickly determine the output power corresponding to the connector and accurately control the input power of the external power supply.
The external power source may be any suitable power source known to those skilled in the art, such as, but not limited to, a PC power source, a rectifier power source, a custom power source, a heating power source, a welding power source, an arc power source, an electroplating power source, a switching power source, an inverter power source, an AC power source, a DC/DC power source, a communications power source, a modular power source, a variable frequency power source, a UPS power source, an EPS emergency power source, a decontamination power source, a network power source, an electrical operating power source, an adapter power source, a linear power source, a power source controller/driver, a power source, an inverter power source, a parametric power source, a.
The patch circuit identification tag can be implemented in a variety of ways, such as:
according to one implementation mode of the invention, the switching circuit identifies the resistance value of the connector, and the switching circuit stores output specifications (the output voltage and/or current values) corresponding to different resistance values, so that the output power corresponding to the connector is determined based on the resistance value, and the external power supply is controlled to output corresponding input power to the input end;
according to another implementation mode of the invention, the switching circuit determines the output power corresponding to the connector through the chip communication identification with the connector, and controls the external power supply to output the corresponding input power to the input end. Through discernment joint and confirm its output that corresponds, and then control the power of external power source who inputs to the input, can be in a flexible way according to the demand voltage of switching equipment, come the switching equipment power supply for the difference, improved power supply efficiency and electric energy utilization ratio, and promoted user experience.
When the input end is connected to the external power supply, the communication protocol of the external power supply can be determined, and then handshaking with the external power supply is performed, so that the output power corresponding to the connector is sent to the external power supply, wherein the communication protocol can be a PD protocol or the like.
Illustratively, the transition device may include, for example but not limited to: electronic devices or products such as shavers, projectors, mobile phones, desktop computers, notebook computers, game machines, earphones, sound boxes and the like; those skilled in the art will appreciate that other devices or products that can be powered through a DC interface may be substituted for the switching device of the present invention, and the present invention is not limited thereto.
Fig. 2 is a schematic diagram illustrating a schematic structural diagram of a circuit for interfacing the switching device according to an embodiment of the present invention.
As shown in fig. 2, the circuit structure for interface switching equipment according to the embodiment of the present invention includes: an input end 100, a switching circuit and an output end 500 which are electrically connected in sequence;
the input end 100 is electrically connected to an external power supply and is used for receiving power input of the external power supply;
illustratively, the input terminal 100 is connected to an external power source by being electrically connected to USB interfaces including a Type-C interface, a Type-a interface, a Type-B interface, a Micro USB interface, a Mini USB interface, a Lighting interface, etc.; preferably, the input terminal 100 in the embodiment of the present invention is connected to an external power source by being electrically connected to the Type-C interface.
Wherein, the output end 500 is electrically connected to the access connector for outputting power to the connector;
illustratively, the output terminal 500 is connected to the connector by being electrically connected to the DC interface, thereby outputting power to the connector.
The switching circuit comprises a control circuit 300 and an identification circuit 400 which are connected in sequence.
The identification circuit 400 can identify the type of the connector, and generally, the type of the adapter connector determines the output power corresponding to the connector.
According to an embodiment of the present invention, the identification circuit 400 may identify the resistance of the connector, so that the control circuit 300 determines the output power corresponding to the connector based on the resistance, and controls the external power source to output the corresponding input power to the input terminal 100;
according to another embodiment of the present invention, the identification circuit 400 determines the output power corresponding to the connector through chip communication identification with the connector, so that the control circuit 300 obtains the output power corresponding to the adapter connector determined by the identification circuit 400, and controls the external power supply to output the corresponding input power to the input terminal 100 based on the determined output power corresponding to the adapter connector.
The control circuit 300 may determine an output power corresponding to the connector based on the identified type of the connector and control an input power of the external power source based on the output power corresponding to the connector. The control circuit 300 can quickly determine the output power corresponding to the connector and accurately control the input power of the external power supply.
The identification circuit 400 may be any suitable device, module, unit or circuit known to those skilled in the art and capable of identifying the type of device connector, and is not limited thereto.
The control circuit 300 may include, but is not limited to, a Micro Control Unit (MCU), a single chip, etc., and other suitable devices, modules, units, or circuits known to those skilled in the art can implement control and processing, and are not limited herein.
As shown in fig. 2, the patching circuit further includes a switching circuit 200 connected to a control circuit 300.
The switching circuit 200 is turned on when detecting that the input power of the external power source is equal to the output power corresponding to the connector, wherein the switching circuit 200 is connected between the input terminal 100 and the output terminal 500, the switching circuit 200 receives the input power of the external power source from the input terminal 100 and determines whether the input power of the external power source is equal to the output power corresponding to the connector, and when the input power of the external power source is equal to the output power corresponding to the connector, the switching circuit 200 is turned on, so that the switching circuit 200 transmits the input power of the external power source received from the input terminal 100 to the output terminal 500 and supplies power to the switching device through the output terminal 500.
The switching circuit 200 may include, but is not limited to, a MOS control circuit, etc., and other suitable devices, modules, units or circuits known to those skilled in the art that can implement power transmission and power determination may be applied thereto, and are not limited in particular.
As shown in fig. 2, when the input terminal 100 is connected to an external power supply, and the input terminal 100 is connected to the external power supply, a communication protocol of the external power supply is determined and handshake communication is performed with the external power supply, so that output power corresponding to the connector determined by the identification circuit 400 is transmitted to the external power supply, and input power output from the external power supply to the input terminal 100 is controlled.
Illustratively, the input 100 may communicate PD with an external power source through the CC pin.
Further, when the input terminal 100 is electrically connected to the Type-C interface and accesses the external power source through the Type-C interface, the input terminal 100 performs PD communication with the external power source through the CC1 pin or the CC2 pin of the Type-C interface.
The circuit for the interface switching equipment and the interface switching equipment provided by the invention can realize the purpose of providing the switching interface for different equipment with DC connectors, so that the switching interface is used for conveniently supplying power for the equipment, convenience is brought to a user, and the user experience is improved; in addition, the required voltage can be provided for the equipment according to the actual voltage requirements of different equipment, the limitation that the prior art can only adopt a fixed voltage specification for power supply is broken, and the use of a user is greatly facilitated.
Another aspect of the present invention also provides an interface switching apparatus, including: the interface switching device comprises a first interface, a second interface and the circuit for interfacing the switching device, wherein the first interface is electrically connected to the input end, and the second interface is electrically connected to the output end.
Illustratively, the interface switching device further includes a power cord, which may include, but is not limited to, an AC power cord, a DC power cord, and the like.
Because the interface switching equipment provided by the invention comprises the circuit for the interface switching equipment, the interface switching equipment also has the advantages of the circuit for the interface switching equipment, and the technical effect can be realized, namely, switching interfaces are provided for different equipment with DC connectors, so that the switching interfaces are used for conveniently supplying power to the equipment, convenience is brought to users, and the user experience is improved; in addition, the required voltage can be provided for the equipment according to the actual voltage requirements of different equipment, the limitation that the prior art can only adopt a fixed voltage specification for power supply is broken, and the use of a user is greatly facilitated.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another device, or some features may be omitted, or not executed.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the method of the present invention should not be construed to reflect the intent: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It will be appreciated by those skilled in the art that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some of the modules in an item analysis apparatus according to embodiments of the present invention. The present invention may also be embodied as apparatus programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only for the specific embodiment of the present invention or the description thereof, and the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A circuit for an interface transition device, the circuit comprising: an input terminal, a switching circuit and an output terminal electrically connected in sequence, wherein
The input end is electrically connected with an external power supply and is used for receiving the power supply input of the external power supply;
the output end is electrically connected with the access joint and used for outputting a power supply to the joint; and
the switching circuit is used for identifying the connector and determining the output power corresponding to the connector, so that the external power supply is controlled to output corresponding input power to the input end.
2. The circuit for an interface switching device of claim 1, wherein the input is electrically connected to a USB interface and the output is electrically connected to a DC interface.
3. The circuit for interfacing a patching device of claim 1, wherein the patching circuit comprises:
an identification circuit for identifying the type of the joint;
and the control circuit determines the output power corresponding to the joint based on the identified type of the joint and controls the input power of the external power supply based on the output power corresponding to the joint.
4. The circuit for interfacing a patching device of claim 3, wherein the patching circuit further comprises:
and the switching circuit is conducted when the input power of the external power supply is detected to be equal to the output power corresponding to the joint.
5. The circuit for an interface transition device of claim 3, wherein identifying the type of the connector comprises: and identifying the resistance value of the joint, so that the control circuit determines the output power corresponding to the joint based on the resistance value.
6. The circuit for an interface transition device of claim 3, wherein identifying the type of the connector comprises: the identification circuit is communicated with the chip of the joint for identification, and the output power corresponding to the joint is determined.
7. The circuit for an interface transition device of claim 5 or 6, wherein when the input terminal is connected to the external power source, the communication protocol of the external power source is determined and the input terminal is handshake with the external power source, so as to transmit the output power corresponding to the connector to the external power source.
8. The circuit for an interface transition device of claim 2, wherein the input is in PD communication with the external power source through a CC pin.
9. An interface switching device, comprising: first interface, second interface, and circuit for interfacing a switching device according to one of claims 1 to 8, wherein the first interface is electrically connected to an input and the second interface is electrically connected to an output.
10. The interface transition device of claim 9, wherein the interface transition device further comprises a power cord.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011125712.8A CN112421601A (en) | 2020-10-20 | 2020-10-20 | Circuit for interface switching equipment and interface switching equipment |
| PCT/CN2021/106301 WO2022083184A1 (en) | 2020-10-20 | 2021-07-14 | Circuit for interface adaptation device and interface adaptation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011125712.8A CN112421601A (en) | 2020-10-20 | 2020-10-20 | Circuit for interface switching equipment and interface switching equipment |
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| CN112421601A true CN112421601A (en) | 2021-02-26 |
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| CN202011125712.8A Pending CN112421601A (en) | 2020-10-20 | 2020-10-20 | Circuit for interface switching equipment and interface switching equipment |
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| CN (1) | CN112421601A (en) |
| WO (1) | WO2022083184A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022083184A1 (en) * | 2020-10-20 | 2022-04-28 | 安克创新科技股份有限公司 | Circuit for interface adaptation device and interface adaptation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022083184A1 (en) * | 2020-10-20 | 2022-04-28 | 安克创新科技股份有限公司 | Circuit for interface adaptation device and interface adaptation device |
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| Publication number | Publication date |
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| WO2022083184A1 (en) | 2022-04-28 |
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